Amusement device



Feb. 7, 1928.

J. S. NAIRN AMUSEMENT DEVICE Filed April 22, 1926 Feb. 7, 1928.

' J. S. NAIRN AMUSEMENT DEVICE Filed April 22, 1926 2 Sheets-Sheet 2 Cir Patented Feb. 7, 1928.

UNITED Si'iATES JOHN STENHOUSE Niki-ti.

EN, 61 ELWOOD; VICTORIA, AUSTRALIA.

AMUSEMENT DEVICE.

Application filed April 22, 19536, Eerial No. 103,705, and in nustralia April 27, .1325.

inven n relates to improvements in amusement cciices and re rs especially to a device adapted to be used as seesaw, a merry-go-round or as an an'iusement device of the type commonly known as an ocean wave" Hitherto, devices of the abovementioned nature have been con ructed by mounting a seesaw beam centrally on a ball or like joint fitted to a post whereby L118 said beam is capable of rotation as well an oscillatory or see-saw movement.

This type of amusement device has, however, been found in operation to possess many disadvantages for instance, children amusing themselves t ereon have no positive means of controlling their move; inent and furthermore accidents often occur as a result of the children falling oii' or at tempting to get off while the beam is in mo- Lion.

blow the object of the present invention is to provide a device which wi l be adapted to function as a see-saw or merry-goround, and, when the two movements are combined, as an ocean wave, the said device affording a maximum degree of safety to, and being under the positive control of, the occupants J issengers.

I accomplish the abovcinentioned objects by providing a passenger carrying; member L V roti y mounted on an oscillatable ncmbc frame SUQPQlt'Hlg tne osclllatable abet u'icans operable by one or more of the passengers for rotating the beam about the oscillatable member, means operable by one or more of ti e passengers for rocking the said oscillatable member and means operable by the passengers whereby theetwo movements may be produced independently, t o function as a see-saw or a inerry-go-round, or cooperatively to function as an ocean wave. Coact loc r t means on the passenger carrying and oscillatable in ember member respectively may be provided whereby the forms will be prevented from movuntil desired.

A particular adaptation of the invention com 7 contc on an oscillatable ineinben a frame the oscillatablo incin- :iean'i, gearing for rocln opera on each i ises a beam rotatively mounted at its and means positioned' adjacent each seat whereby the gear operating mechanism will be caused to actuate either the gearing for rotating the beam or the gearing for rockthe oscillatable member.

Having now described the object and nature of the invention reference will be made to the accompanying sheets of explanatory drawings, wherein Figure 1 is a view in side elevation of an amusement device constructed and arranged in accordance with. the invention.

Figure 2 is a View in end elevation of the tion taken on the line 7--8 of Figure 6 and looking to the right thereof.

Figure 8 is a view in sectional end elevation taken on the line 78 of Figure 6 and looking to the left thereof.

t Figure 9 is a view in sectional plan of portion of the beam and members fitted thereto;

and

Figure lQ'is a view in side elevation, and

Figure ill a plan of the gearing for oscillating the device.

Referring now to the drawings, 15 is a beam which is revolval'ily mounted at the centre thereof on a tube 16 which is rigidly secured to and forms part of an oscillatable member 17, ball bearings 18 being preferably provided to diminish frictional resistance.

The oscillatable member 17 is fitted with laterally projecting trunnions 19, which are pivot-ally accommodated in the side members of a pyramidal shape-d pedestal or frame 20 which is suitably braced to withstand the stresses to whichit is subjected.

An annularlocking member 21 is formed in egrally with the oscillatable mei'nber 17,

alternatively it may be ri idly secured i'lfli'fl" Find he some affirm d with two ill pairs of opposed slots 23 which are arranged one on each side of, and at equal distances from, the centrally disposed tube 16.

Each pair of slots 23 has two of its diagonally opposite sides formed with ramps or inclined faces 23' (see Figure A tube 22 surrounds the tube 16 and carries the stationary drive crown gear to be more fully hereinafter described.

The ends of the beam are provided with seats 23 which are each adapted to accommodate a child and which may be formed (as shown) by means of U shaped members, it, rigidly secured to opposite sides of the beams and having attached thereto horizontal inembers the free ends 26 oil. which project slightly beyond the vertical portions of the U shaped members 2% the upper ends of which also extend above the top of the horizontal members 25.

Each end of the beam 15 is provided with a supporting member 27 which is pivotally secured to the said beam and is provided with a laterally projecting bar 2? which serves as a step to enable a child to conveniently reach the seat.

The supporting members 27 are formed integrt lly with or rigidly secured to lever 28 which are positioned adjacent the open sides of the seats and are of such formation that when a child is in one of the seats the said lever adjacentthereto may be depressed to engage slots 29 formed in the projecting ends 26 of the horizontal members 25, thus closing the open side of the seat and, at the same time, raising the supporting members 27 clear of the groundv as clearly shown in broken lines in the right hand side of Figurel of the drawings.

The supporting members 27 are connected as at 30 by links 30 with rods 31 reciprocatinglv mounted in bearings 32 secured to the underside of the beam 15 and the inner ends of the rods are connected to opposite ends of a series of jointed links or lazytongs 33 which is pivotally attached the centre thereof to the beam 15 by abolt 34L (see Figures 1 and 9 0i the drawings) By connecting the supporting members 27 in this way the same are constrained to move in unison so that when the child at one end of the beam depresses the lever 28 positioned adjacent his seat, the lever 28 at the opposite end of the beam is simultaneously depressed. a

One of the supporting members 27 is al o connected by a link 35 to the lower end of a depending lever 36 which is pivoted at its upper end to a vbracket 36' secured to the underside ofthe beam.

A locking bar 37 has one of its ends pivotally connected to the lever 36 at a point intermediate its ends and the opposite end is pivotally connected at a similar radius to a lever 38 depending from a lug formed on a guide bracket 39, positioned on the opposite side of the centre oi? the beam to the first mentioned lever A guide bracket d0 also secured to the underside of the beam adjacent to the lever 36. I

lVhen the upporting members :5? arc in a vertical position the locking bar 3? is par tiall 'accommodated in one pair of the opposed slots .3, formed in the anmilar locltmg member 21 thus prevent ng rotation of the beam 15, when, however, th supporting the inner ends o'l"longitiulinally extending spindles ist the outer ends of which are sup ported in bearing brackets secured to the top of the beam in proxin'nty to the seats.

The inner ends ot the spindles llal the rear of the pinions l3 pass tl'n'ough slot-i lb formed in the side members elf a saddle shaped bracket l? which is bolted to the top oi the beam.

The outer ends of the spindles are ri idl fitted with ratchets l8, and cranl; ari'ns ll) provided with gripping handles are {reel mounted on the said spindles the said crank arms being retained thereon by set screws :71 (*ee Figures 6 and 8).

A pawl comprising a spring is secured to each c 'ank arm l9 and the same is adapted to engage the teeth on its respective ratchet L8.

If desired the ratchets all may be dispeuseil with and the crank arms rigidly utturbtul to the ends oi the spindles 4d.

A. tube 53 is mounted freely on will at the spindles :t-l and the inner ends of the same are rigidly attached to eccentrics Tel which are mounted in gaps formed in the webs at? of the bearing bracket Q7.

The outer ends of the tubes 7:3 pass through the ln'achcts l5 and are provided with clamps each having a pair of lat erally projecting lugs 56 formed thereon. A latching member 57 is pivotally secured hetwcen each pair of lugs 56 and a slot 53 corresponding in width to the said latching members is termed in the top of the hinge 45 of each bracket 4:5.

The short ends of the latching members 57 are of such formation that the sanm are pre vented from falling outwardly to foul the crank arms 49.

It will be obvious. from an inspection of the drawings, that. when the tubes :12, m given halt a .turn, and the opposite lulrhiuri member 57 is caused to engage the slot :13 in the flange 45 of the bracket 4-47. the cocentrics 54 will raise or lower the pinions lull Ill

d3 out of or into mesh with the bevel crown wheel 41.

A spindle 59 is rotatively mounted in the tube 16 and is suspended from its upper end by means of a split pin and washer resting on a boss formed on the bracket 47.

The upper end of the spindle 59 projecting through the boss on the bracket 4? is reduced in diameter to form a shoulder adapted to prevent the same from rising.

A bevel crown wheel 60 is mounted on the spindle 59 below the top of the bracket 47 in such a manner tha t same is capable of a slight axial more: onbut is constrained to rotate with. the spindle. this result being effected by a transverse p n 61 in the spin dle engaging a loniritudinallv disposd slot 62 in the boss oi the said bevel crown wheel '60.

A clutch member which n the adaptation of the invention illustrat d in the (lIfiWlIIQS takes the form of an int ial bevel gear 6?, is rigidly secured to or is formed in orally in .Qthe bevel wheel ti l .r' d a corr ending clutch member 64: is set red to the upper end out the tube 16 or. it desired, the same may be formed integrally with the bevel wheel ll.

When both bevel pinions 4-3 are in their lower positions and. ei'igrag'ing the bevel crown wheel ll the upper bevel crown wheel S moves axiallv until the enacting clutch members 63 and 64 engage the one with the other. thus preventing rotation ot the spin die 59. i

A gear wheel 65 which is preteraliily termed as -lrustuin of a sphere is riefidlv secured to the lower end of the s indie 59 and the same is in constant mesh with apair of elliptic gear wheels 66 which are each pivotallv mounted at one or" their Focal points on bolts 66 s cured to horizontal bar forniing part of the base or pedestal 20.

l l hen either ot the bevel pinions d3 is moved into its upper pos ion bv p'ving' a partial rotation to the tube surrounding the spindle (l4 titted thereto. the said p nion engages with the bevel crown wheel. and raises the clutch member 63 clear ol the clutch membr Get as clearly ihowu in Figure Any sul'iseoguent rotation of the spindle it connected to the said pinion will cause the spindle 59 to rotate theelliptie gearing 66, the eltect of which is to cause the gear to oscillate backwards and forwards alone an arc. the centre of which is constituted by the trunnions 19.

The oscillatory motion of the gear is comn'iunicated to the oscillatable member 17 and beam 15 by means of the spindle the tilted position of the beam on one side of its normal position bei shown. by chain dotted lines in Fizrure l o: draw One at the 44 is connected by a.

link 67 to one end of a lever 68 pivoted at its centre to the bracket and the opposite end thereof is pivotally secured to a depending rod 69 having a hook or abutment 70 formed on its lower end,

The hook or abutment is adapted to engage the bottom edge of a safety bar Tl. which normally engages the second pair of slots 23 in the annular locking member 21 and has its ends mounted in slots 72 in the brackets 39 and 40.

When however, the spindle M: and pinion 43 connected to the link 67 are depress-ed, the rod 69 will be moved upwardly, the abutment 70 thereon at the same time raising the safety bar 71 from the slots 23.

The guide slot 7 2 in the bracket 39 is made of such size that when the end of the safety bar accommodated therein has been raised to a predetermined height the upper edge of the same will pivot on the edge of the slot so that the opposite end will be raised clear of the annular locking member. The mecha nism for raising the safety bar is preterably so adjusted that when the same is fully raised its lower edge is still slightly below the top of the annular locking member 21.

When the pinion or pinions 43 are rotated in such a manner as to cause the beam 15 to move in the direction of the arrow shown in Figure the safety bar merely moves up the ramp 23', in succession. Retrograde movement. however, is prevented by the said bar 71 coming; into contact with the vertical faces of the slots.

In operation. after a child has entered each seat, the levers 28 are depressed to engage the slots 29 formedin theprojecting ends 26 of the horizontal members 25, thus loc ring the occupants in their seas, and. at the same time raising the supporting membore 2 clear of the 'round see righthand side Figure 1).

Simultaneously also with the elevation ot the supporting members 27 the locking bar 37 is raised clear of the slot in the annular locking member 21 in which it is normally positioned. through the medium of the lever 86 and link 35.

If the occupants desire to see-saw. the

of opposed slots 23. and it will be understood thatboth the locking bar 37 and the sntetv b. r 71 must be elevated above the annular locking member 21 before the beam 15 can rotate about the tube 16: therefore. when the right hand pinion is raised. the beam cannot rotate or swing :lron'i side to sideloo When the bevel crown wheel 60 is rotated by means of the crank arm 19 associated with the bevel pinion in mesh therewith, the elliptic gears and 66 are rotated, and cause the spindle 59 and beam 15 to oscillate backwards and forwards as clearly evidenced in the drawings, the trunnions being the centre of oscillation of the device. As it is impossible to rotate the left hand bevel pinion l3, while the same is in mesh with the bevel crown wheel and the safety bar 71 is engaging the annular locking member 21, the said bevel pinion could also be raised to mesh with the bevel crown wheel 60 and assist in the see-saw or oscillatory movement.

The resiliency of the frame or pedestal assists the see-saw movement by preventing undue shock and consequent strain on the parts when the beam is being brought to rest at the ends of the alternate up and down movements.

Upon lowering both bevel pinions into engagement with the lower bevel crown wheel 41, the upper crown wheel will fall by gravity until the coacting clutch members 63 and 6 1 engage the one with the other and lock the spindle to the oscillatable member 17 In this position the teeth of the upper wheel tit) will be disengaged from the pinions and the spindle will look as a unit with the gear 11 thus holding the parts against movement, yet permitting the beam 15 to rotate freely about the tube 22. Since the locking bar 37 has been released by the elevation of the supporting members 27 and the safety bar is raised clear of the annular locking member 21 by the lowering of the pinions 43 operating through the lever 68, link 67 and rod 69, rotation of the bevel pinions will cause the beam15 to rotate in the direction shown by the arrow in Figure 5 and the devicemay thus be used as an ordinary merry-go-round. As previously explained, the vertical faces of the slots 23 prevent any reverse movement of thebeam.

Obviously by imparting motion to the upper gear wheel 60 prior to its lowering movement, the gears 65 and 66 will be operated to move the spindle 59 and beam 15 into an inclined position as shown in chain dotted lines in Figure 1, after which the pinions are :aused to engage the lower bevel crown wheel 41 and disengage the crown wheel 60.

The coacting clutch members will then lock the spindle in its inclined position, and the beam may be rotated thereabout in a plane more or less inclined to the horizontal. This I call a toboggan movement.

In order that the see-saw and rotary movements may be combined to produce a rotatory undulatory movement or oceanavave effect, the right hand bevel pinion, referring to Figure 3, is caused to engage the lower bevel crown wheel 41 while the left hand bevel pinion is caused to engage the upper neaenss bevel crown wheel 60. The crank arm 49 associated with the left hand bevel pinion is preferably restrained from rotating by plan ing a ring 7 3 attached by a cord to a small weight 7a positioned on the underside of the beam 15, around the handle 50 attached thereto (see Figures 6 and 8).

The rotation of the right hand bevel pinion will cause the beam 15 to rotate and, at the same time, the left hand bevel pinion being restrained by the ring 7 3 from rotating will cause the upper bevel crown wheel to rotate, thus superimposing the oscillatory movement upon the rotary movement.

If desired, the restraining means may be dispensed with and the cranl; held or rotated by the hand.

A brake of any welllrnown or suitable construction and operable by the occupants of one or both seats may be titted to the device if desired to retard when necessary the rotation of the beam 15.

When the device is positioned on a lawn or floor a longitudinally extending member such as a plank may be placed therebelow in order to prevent the supporting members 27 injuring the surface thereof when the same are in a vertical position.

It is to be understood that two or more beams 15 may be employed in the device, the said beams being spaced at regular in tervals about the central pivotal support, and that such structure involves no dillerence of function as one, two or more of the seats may have an operating crank arranged in proximity thereto, and the same could be constructed without difliculty by anyone skilled in the art.

\Vhilst the preferred form of the invention has been described and illustrated, it will be obvious that various modifications, alterations and rearrangements of parts may be efl'ected without departing from the spirit and scope of the invention and for this reason I do not wish to be confined to or limited by the specific terms employed in the description.

I11 the following claiming clauses. where the term oscillatable member is used, it is intended to include within its scope any member which is rigidly fitted thereto or formed integrally therewith, such as. for example, the tube 16 and the annular locking member 21.

An amusement device constrrwlcd, arranged and operating in accordance with the present invention will be found safeand positive in operation and low in manufacturing costs.

I claim:

1. An amusement device comprising a passenger carrying member moimtcd for rotatable and oscillatory motion and manually operable mechanism for imparting both motions to the passenger carrying member till lull

lit

simultaneously or either motion to said mem ber independently.

2. An amusement device comprising a iotatable passenger carrying men'ibcr, mounted for rotatable and oscillatory motion, actuating means associated with the passenger carryingmember and operable by passengers thereon to impart both motions. simultaneously or either motion independently thereto, and passenger controlled means to select such of said motions as may be desired.

3. An amusement device comprising a rotatable passenger carrying member, an oscillatable member rotatably supporting the passenger carrying member, at or near its centre, a relatively fixed frame supporting the oscillatable member, seats on the passenger carrying member, gearing for rotating said passenger carrying member, gearing adapted to rock the oscillatable member, gear operating mechanism positioned adjacent each seat, and means for causing the gear operating mechanism to actuate either the gearing for rotating the passenger carrying member or the gearing tor rocking the oscillatable member.

i. All amusement device comprising a rotatable passenger carrying member, an oscillatable member rotatably supporting the passenger carrying member, at or near its centre, a relatively frame supporting the oscillatable member, toothed gearing adapted to roclr the oscillatabie member, toothed gearing adapted to rotate said passenger carrying device, gear operating mec -i anism mounted in convenient positions on the passenger carrying device, and means for adjusting the gear operating mechanism to actuate either the gearing for rotating the beam or the gearing i'or rocking the oscillatable member.

5. An amusement device comprising a rotatable beam, an oscillatable member rotatably supporting the beam at or near its centre, a relatively lined frame supporting the oscillatable member, gearing adapted to rotate the beam, gearing adapted to roclr the oscillatable member, a locking member on the cscillatable member, a locking means on the said beam adapted when engaged to prevent rotation thereof, a seat at each end of the beam, means for closing the seats when occupied, means disengaging the locking means simultaneously with the movement of the seat closing means to closed position, gear operating means ytiositioned adjacent each seat, and means operable from each seat for causing gear operating means to actuate either the gearing for rotating said beam or gearing :tor reel-ting said oscillatable member.

An amusement device comprising a rotatable passenger carrying member, an oscillatable member rotatably supporting the passenger carrying member at or nearitscentre, a relatively fixed frame supporting the oscillatable member, seats on the passencarrying member, a centrally disposed spindle revolvably mounted the oscillatabio member and pass ng vertically through said passenger carrying member, a bevel crown wheel rigidly secured to the oscillatable member above the said passenger carrying member, a bevel crown wheel mounted on and constrained to rotate with the centrally disposed spindle, the same being disposed above the first n'ientioned bevel crown wheel, radially extending spindles having their outer ends terminating near the said seats, hand operated cranks on the said outer ends of the spindles, bevel pinions on the ins trunnions projecting laterally from the oscillatable member and accommodated in said frame, a seat on each end of said beam, a bevel wheel rigidly secured to the oscillatable member above said beam, a centrally disposedspindle rotatably mounted in and co-axial with the oscillatable member, a bevel crown wheel mounted onthe said spindle, and constrained to rotate therewith,.longitudina-lly extending. spindles having their outer ends terminating adjacent to the said seats, bevel piniens on the inner ends of the longitudinally extending spindles, cranks on the outer ends of the said spindles and means for raising and lowering the bevel pinions to engage either the bevel crown wheel on the centrally disposed spindle or the bevel crown wheel on the upper end of the oscillatable member. y

8. In an amusement device as claimed in claim 6, a gear on thjelower end of the centrally disposed spindle,rand opposed elliptic gears meshing with the said gear, whereby when the same are rotated the oscillating member is caused to rock.

9. In an amusement device as claimed in claim 6, a bracket supporting the inner ends of the radially extending spindles and the upper end of the said centrally disposed spindle, slots in the said bracket adapted to allow a limited vertical movementto the said radial spindles, abutment-s above and below the said slots, a tube mounted freely and co. centrically on each of the radially extending spindles, eccentrics rigidly attached to the inner ends of the said tubes, and riding against the bracket between the abutments whereby when the same are rotated the said bevel pinions will be raised or lowered, and means associated with the outer ends of the tubes for retaining the same in their adjusted positions.

10. In an amusement device as claimed in claim 7, a bracket attached to each end of the beam and supporting the said longitudinally extending spindles, a central bracket supporting the inner ends of the spindles, a tube mounted freely and concentrically on each of the said spindles, abutments on the said central bracket, eccentrics rigidly secured to the inner ends of the tubes in engagement with opposite sides of the central bracket and between the abutments, a member secured to the outer end of each of the said tubes, latching members pivotally mounted in said members, and a recess in each of said first mentioned brackets to accommodate one of said latching members whereby when said tubes are rotated eccentrics will cause bevel pinions to be raised or lowered into or out of mesh with the said bevel crown wheels.

11. In an amusement device as claimed in cla m 5, a supporting member pivoted to the beam in proximity to each seat and adapted normally to rest on the ground, means to raise the supporting member off the ground upon operation of the seat closing means, means for causing the seat closing to move in unison and means for retaining the seat closing means in their closed positions.

12. In an amusement device as claimed in claim 7, an annular locking member rigidly secured to the oscillatable member, and having a pair of opposed slots formed on each side of and at equal distances from the centre of said annular locking member, links depending from the underside of the beam and on opposite sides of the centre thereof,

a locking bar having its ends pivotally connected to the said depending links, levers pivoted to the beam adjacent each seat and adapted when depressed to close said seats, and means associated with one of the said levers whereby when the same is depressed the said locking bar will he raised clear of the slots in the said locking member.

13. In an amusement device as claimed in claim 7, an annular locking member secured to the oscillatable member, a pair of opposed slots on each side of, and at equal distances from, the centre of said annular locking member, a vertically movable safety bar on the beam, adapted to engage one of the said pairs of slots, a central bracket supporting the inner ends of the longitudinally extending spindles, adouble ended lever pivoted to the central bracket, a link connection between one of the longitudinally disposed spindles and one end of the said double ended lever, a depending member connected to the opposite end of the double ended lever, and an abutment on the depending-member engaging the safety bar, whereby when the longitudinally extending spindle is in its lower position the safety bar will be raised clear of the said annular locking member.

14. In an amusement device as claimed in claim 7, an annular locking member secured to the oscillatable member, a pair of opposed slots on each side of and at equal distances from the centre of the annular locking member, a central bracket supporting the inner ends of the longitudinally extending spindies, a vertically movable safety bar on the beam adapted to engage one pair of the said slots and normally positioned with its lower edge just below the top of the annular lockingmember, means for causing the safety bar to engage the slots when one of the longitudinally extending spindles is raised, and a ramp on one side of each of the slots whereby when the safety bar is raised, the beam can rotate'in one direction only.

15. An amusement device as claimed in claim 7, characterized in that the bevel crown wheel on the upper end of the centrally disposed spindle is capable of axial movement, a clutch member is secured to the upper end of the oscillating member, and a coacting clutch member is formed on or rigidly attached to the said bevel crown wheel whereby when both bevel pinions are lowered the bevel crown wheel will move axially and allow the coacting clutch members to engage and prevent rotation of the said spindle.

16. An amusement device as claimed in claim 7, characterized in that the crank arms are freely mounted on the ends of the longitudinally extending spindles, a ratchet is rigidly attached to each of the said spindles, and pawls on the crank arms which are adapted to engage the teeth on the ratchets.

17. In an amusement device as claimed in claim 7, a supporting member pivoted to the beam adjacent each seat, steps on the supporting members, a lever rigidly attached to each supporting member, said levers being of such formation as to close the seats when depressed, rods reciprocatingly mounted on the underside of the beam, links connecting the supporting members to the said rods, and a series of jointed links pivoted at its centre to the beam and having its opposite ends connected to the said rods, constructed and arranged whereby when one lever is depressed to raise the supporting member attached thereto, the other lever and supporting member will be constrained to move in unison therewith.

18. An amusement device comprising a frame, an oseillatable member pivotally su ported in. said frame, a beam rotatabl mounted on the oscillatable member, a seat at each end of the said beam, a centrally disposed spindlemounted rotatably and concentrieally on the oscillatable member, a bevel crown wheel secured to the oscillatable member above the beam, :1 bevel crown wheel mamas constrained to rotate with but capable of axial movement on the centrally disposed spindle, the same being disposed above first mentioned bevel crown wheel, a central bracket supporting the upper end of said spind e, longitudinally extending spindles having their outer ends positioned adjacent the said seats, brackets StlPPOltlIlg the outer ends of the said spindles, hand operable cranks on the spindles, bevel pinions on the inner ends of the said spindles, tubes surrounding the spindles, eccentrics rigidly secured to the inner ends of the tubes and bearing on abutinents on the central bracket, the rotation of said tubes thereby causing the bevel pinions to engage with the upper or lower bevel crown Wheel, means for retaining the bevel pinions in their adjusted positions, a clutch member on the oscillatable member, a coacting clutch member on the upper bevel crown wheel and arranged to engage when both bevel pinions are'meshing with the lower bevel crown wheel, means for supporting the ends of the beam when the device not in use, and locking means associated with said supporting means, to prevent rotation of the beam.

19. In an amusement device as claimed in claim 7, gripping handles on the crank arms, a ring normally resting on the top, and at one end, of the beam, and a weight on the underside of the beam and attached to said rin b a flexible member, said rings being adapted to engage gripping handles and prevent rotation of the cranks.

In witness whereof I hereunto afiix my signature.

JOHN S. NAIRN. 

